-er -up ddd dde ddi ddn ddp ddr dds ddt ddu de- ded dee dei den dep der des det deu di- did die dii din dip dir dis dit diu dnd dne dni dnn dnp dnr dns dnt dpd dpe dpi dpn dpp dpr dps dpt dpu drd dre dri drn drp drr drs drt dru dsd dse dsi dsn dsp dsr dss dst dsu dtd dte dti dtn dtp dtr dts dtt dtu dud due dui dun dup dur dus dut ed- edd ede edi edn edp edr eds edt edu eed eee een eep eer ees eet eid eie eii ein eip eir eis eit eiu en- end ene eni enn enp enr ens ent enu ep- epd epe epi epn epp epr eps ept epu erd ere eri ern erp err ers ert eru es- esd ese esi esn esp esr ess est esu etd ete eti etn etp etr ets ett etu eu- eud eue eui eun eup eur eus eut i-d idd ide idi idn idp idr ids idt idu ie- ied iee iei ien iep ier ies iet iid iie iii iin iip iir iis iit iiu in- ind ine ini inn inp inr ins int inu ipd ipe ipi ipn ipp ipr ips ipt ipu ir- ird ire iri irn irp irr irs irt iru is- isd ise isi isn isp isr iss ist isu itd ite iti itn itp its itt itu iu- iud iue iui iup iur ius iut n-i ndd nde ndi ndn ndp ndr nds ndt ndu ne- ned nee nei nen nep ner nes net neu nid nie nii nin nip nir nis nit niu nne nni nnn nnp nns nnt nnu npd npe npi npn npp npr nps npt npu nrd nre nri nrn nrp nrr nrs nrt nru nsd nse nsi nsn nsp nsr nss nst nsu ntd nte nti ntn ntp ntr nts ntt ntu nud nue nui nun nup nur nus nut nuu p-p pdd pde pdi pdn pdp pdr pds pdt pdu ped pee pei pen pep per pes pet peu pid pie pii pin pip pir pis pit piu pn- pnd pne pni pnn pnp pnr pns pnt pnu ppd ppe ppi ppn ppp ppr pps ppt ppu prd pre pri prn prp prr prs prt pru ps- psd pse psi psn psp psr pss pst psu pt- ptd pte pti ptn ptp ptr pts ptt ptu pud pue pui pun pup pur pus put puu rdd rde rdi rdn rdp rdr rds rdt rdu re- red ree rei ren rep rer res ret reu rid rie rii rin rip rir ris rit rnd rni rnn rnp rnr rns rnt rnu rpd rpe rpi rpn rpp rpr rps rpt rpu rrd rri rrn rrp rrr rrs rrt rru rsd rse rsi rsn rsp rsr rss rst rsu rtd rte rti rtn rtp rtr rts rtt rtu rud rue rui run rup rur rus rut ruu sdd sde sdi sdn sdp sdr sds sdt sdu se- sed see sei sen sep ser ses set seu sid sie sii sin sip sir sis sit siu snd sne sni snn snp snr sns snt snu spd spe spi spn spp spr sps spt spu sr- srd sre sri srn srp srr srs srt ss- ssd sse ssi ssn ssp ssr sss sst ssu std ste sti stn stp str sts stt stu sud sue sui sun sup sur sus sut suu tdd tde tdi tdn tdp tdr tds tdt tdu te- ted tee tei ten tep ter tes tet teu tid tie tii tin tip tir tis tit tiu tnd tne tni tnn tnp tnr tns tnt tpd tpe tpi tpn tpp tpr tps tpt tpu trd tre tri trn trp trr trs trt tru tsd tse tsi tsn tsp tsr tss tst tsu ttd tte tti ttn ttp ttr tts ttt ttu tud tue tui tun tup tur tus tut tuu udd ude udi udn udp udr uds udt udu ued uee uei uen uep uer ues uet uid uie uii uin uip uir uis uit uiu un- und une uni unn unp unr uns unt unu up- upd upe upi upn upp upr ups upt upu ur- urd ure uri urn urp urr urs urt uru usd use usi usn usp usr uss ust usu utd ute uti utn utp utr uts utt utu uue uun uur uus uut uuu